Combined valve-cap and pump-coupling.



M. C.- SCHWEINERT. COMBINED VALVE CAP AND PUMP COUPLING.

Patented Apr. 2, 19m

APPLICATION FILED JAN. 19. I916.

LQGLSOQD By Attorneys,

an LES scnwnmnnr, or wnsr 3mm, new Jnasn'r.

comma!) VALVE-GAP AND PUMP-COUPLING.

Specification of letters Patent.

Patented Apr. 2, 391%.

Application filed January 19, 1916. Serial No. 72,878.

1 '0 all whom it may concern:

Be it known that I, MAXIMILIAN CHARLES SoHwmNnRT, a citizen of the United States of America, residing in West Hoboken, in-

the county of Hudson and State of New Jersey, have invented certain new and useful Improvements in Combined Valve-Caps and Pump-Couplings, of which the following is a specification. k

This invention relates to pneumatic tire or similar valves, and aims to provide certain improvements therein.

The standard pneumatic tire valve is usually provided with a cap adapted on one side to screw down over the valve casing andhaving a packing designed to make a tight joint with the end of the casing. In axial alinement' therewith is usually provided a screw-driver projection by means of which the common valve insides may be inserted into and removed from the casing. Accordin to, the resent invention I providea va ve cap of this type which has an additional function of serving as a pump coupling, by means of whichthe pump may be connected with the valve casing. Ordinarily such a function is not necessary, since pump couplings are usually adapted to screw directly on the casing when the valve cap is removed. Many ump couplings are, however, (and particu arly abroad) constructed to screw overa much smaller valve' nipple than is usual in connection with the standard Schrader valve, so thatthe pump is, not fitted for direct application to the valve casing. It is necessary in such cases to provide a supplementary pump coupling in order to fit such pumps for this use. Such supplementary pump couplings are apt to be lost or mislaid and one of the ob jects of the present invention is to provide a coupling of this character which will be a art of the valve cap, which latter is always in place upon the valve except during inflation or deflation.

In the drawings wherein I have illustrated several forms of the invention,-

Figure 1 is a diametrical section of a cap constructed according to the present invention, the cap being shown in connection with .any leakage through a pump and valve, and being in position to act as a coupling member.

Fig. 2 is an elevation of the. cap looking from left in Fig. 1.

Fig. 3 is a similar elevation, looking from the right.

Fig. 4 is a sectional view of another form of cap.

5 is a top view of Fig. 4.

Fig. 6 is a sectional view of another form ofcap.

Fig. 7 is a sectional view of still another form.

Referring first to Figs. 1 to 3, let A indicate the capas a whole having a screwthreaded recess B adapted to fit over the end of a standard valve C. D is a packing adapted to make a tight joint with the top face E of the valve casing and thus prevent the casing. Axially opposlte the recess B is a screw-driver proect1on F which is adapted to enter the casing and to be used as atool to unscrew the valve insides G. At the side of the cap is provlded a screw-threaded projection H which is adapted to be connected to a couplingpiece I of a pump tube J. When the coupling piece I is constructed for engagement with a valve nipple which is of different dimensions from the nipple C, the projection H will correspond in its dimensions. As shown, the coupling piece is intended primamly for a much smaller nipple than C, and consequently the projectionH will correspond to the dimensions of such nipple. In the construction shown the projection H has a tapered end K, and the coupling piece I has a tapered seat L for forming an approximately tight joint with the projection. On the opposite side of the cap is provided a projection M which is of proper dimensions to enter within the nipple C of the standard valve (or it may be to screw over the exterior of such nipple) and a packing such as N is provided for bearing against the upper face E of the nipple for forming a tight joint therewith. Between the projection H and the projection M is a passage, such as 0, adapted to conduct air from the pump tube to the valve.

t, 'In' Fig. 4 a similar construction is shown 4. Acombined ca andinflation coupling a5 1 with the exception that-instead of the screwcomprising a part a apted to 'make a screwdriver projectionF' being located in axial threaded. engagement with .a valve shell to alinement with the of the. cap it is close the same, and an adapter comprising 5 located at one side, while the projection a screw breaded projection adapted to occupies the position of the screw-driver the valve, a pro ection of smaller diameter 74) projection shown in Fig. 1. The pump pro adapted to fit a pump couplingowhich does jection H in this construction is located as is not fit the valve, and a passag 'etween said shown in Fig. .1. The connecting bore 0' in two last-named pro ections. a .10 this construction is an angled passage. 5. combined ca and inflation couplin In Fig. 6' the arrangement is' such as to comprising a part avmg a recess forme 75 render the several pro'ections more compact, Wltllflll internal screwbread and having a the pump connection 2 being in axial a inepacking washer and constituting a cap for a ment with th body of the cap while the valve to close the same and an adapter com- 16 valve projection M is located at one side prising ascrew-threaded projection of small and at an acute angle to the body of the cap. d1ameter adapted, to be connected with a w v The bore 0 is angular, as shown. The pump which does not fit the valve, and a screw-driver projection F is arranged on screw-threaded projection of larger diameter the opposite side cm the valve pro ection adapted to fit the valve. 2c and preferably in line therewith. 6. A combined cap and inflation coupling In Fig. 7 the pump projection H is comprising a part aving a recess form 35 located as in Fig. 6, as is also the screwwith an internal screw-thread and having a driver rojection F". The valve projection packing washer and. constituting a cap for a M is, owever, arranged at right angles to valve to close the same, and an adapter comthe body of the cap. rising a screw-threaded projection of small It is obvious that several other arrangeiameter adapted to be connected with a co ments of these projections may-be made. pump which does not fit the valve, a screw- The construction of Fig. 6 is perhaps t e threaded. projection of larger dlameter most compact arrangement, and et 1' adapted to fit the valve, and a passage leadadapted for the performance of the several in from one projection to the other.

Y functions involved. Y A combined cap and inflation couplin as While I have shown and described several comprising a part having a recess form forms of the invention, it will be understood with an internal screw-thread and having a that I do not wish to be limited thereto, packing washer and constituting a cap for since various changes ma be made therein a valve to close the same, and an adapter without departing from t e invention. comprising a screw-threaded projection of Joe. What ll claim 1s:-- small diameter adapted to be connected with a 1.. A combined cag and inflation coupling a pum which does not fit the valve, a screwcomprising a part a apted to make a screwthrea ed projection of larger diameter to threaded engagement with a valve shell to adapted to fit the valve, a passage leading Y close the end of the same, and an adapter from one projection to the other, and a comprising means for engaging the valve, screw-driver projection.

. means for engaging a pum which does not 8. A combined ca and inflation coupling fit the valve, and apass'age eading from one comprising a part avin a recess forms 45 of said means to the other. with an internal screwfiread and having I 2. A combined ca and inflation coupling a packing washer and constituting a cap for comprising a part a apted to make a screwa valve to close the same and an adapter threaded engagement with a valve shell to comprising a screw-threaded projection of close the end of the same and an adapter small diameter adaptedto be connected with to comprising projection a apted to be cona pump which does not fit the valve, a screwnected 't a pump whlch does not fit the threaded projection of larger diameter valve, and a pro ection adapted to be con- 1 adapted to fit the valve, a passage leading nected with the valve, and a passage between from one projection to the other, and a screwsaid two last-named projections. driver projection, and one of said projecto 3. A combined ca and inflation coupling tions being in line with said first-named part.

\ comprising a part a apted to make a screw- 9. A combined ca and inflation coupling 12o threaded engagement with a valve shell to comprising a part liaving a recess forme close the end of the same, and an adapter with an internal screw-thread and having a comprising a projection adapted to be con packing washer and constituting a cap for a 80 nected with a pump which does not fit the valve to close the same, and an adapter comvalve, a projection adapted to be connected prising a screw-threaded projection of small with the valve, a passage between said two diameter adapted to be connected with a last-named projections, and a third projecpum which does not fit the valve, a screwtion constituting a tool. threaded projection of larger diameter adapted to fit the valve, a passage leading my name in the presence of two subscribing from one projection to the other, and a screw- Witnesses. driver projection one of said projections being in line with said first-named part and MAXIMILIAN CHARLES SGHWEINEBT' 5 said two remaining projections being in axial Witnesses:

. alinen ent. CHAs. LYON RUSSELL Inwitness whereof, Ihave hereunto signed E. V. MYERS. 

